from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The deflection of radiation or particles by electromagnetic or nuclear forces through angles greater than 90° to the initial direction of travel.
- n. The radiation or particles so deflected.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The deflection of particles and/or radiation through angles greater than 90 degrees to the original direction of travel.
- n. The particles and/or radiation deflected in this manner.
- n. A portion of the energy of electromagnetic radiation such as a laser or radio waves that is scattered back in the direction of the source of radiation by an obscurant.
- n. The sending of IP packets to essentially random addresses in response to incoming packets that have a spoofed origin.
- v. To scatter particles and/or radiation back to the direction from which they come.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. scatter (radiation) by the atoms of the medium through which it passes
The other scanners use X-ray beams, in what is known as "backscatter technology."
The other scanners use X-ray beams, in what is known as backscatter technology.
The full-body scanners, called backscatter devices, are supposed to deliver only a tiny amount of radiation — about as much as an airplane passenger gets during two minutes of a typical flight.
The article, published online Monday in the Archives of Internal Medicine, estimated the potential risks of the radiation emitted from so-called backscatter X-ray scanners, a commonly used machine.
Consider that the amount of radiation that you get from a scan called backscatter because it reflects back rather than penetrates the skin is so low that it is less than 2% of the amount of radiation you are exposed to in one day of simply walking around.
This is using actually what's called a backscatter technology.
This scan, using so-called backscatter technology can see right through my clothing.
First of all, we're talking about this thing known as backscatter X-ray screening.
And when it comes to backscatter, which is more like an X-ray, he said they might have to change the settings there to bring back a little more detail in the groin area, but he thought if that was done, that would also work.
But, Larry, let me ask you for your reaction for the news moments ago from Amsterdam, that Dutch officials are going to put into use the so-called backscatter or millimeter wave imaging machines for all passengers destined for the United States?